#8486: cannot derive new-typeable instances for promoted data types taking parameters -------------------------------------+------------------------------------ Reporter: aavogt | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: 5682 -------------------------------------+------------------------------------ Comment (by goldfire): I'm working on #5682, but I would think that `Typeable` instances for data constructors exported from base should also be exported from base. Otherwise, there will be orphan instances that might conflict. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8486#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler